Physics

A baby mouse 1.2 cm high is standing 4.0 cm from a converging mirror having a focal length of 30 cm.
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A meter-stick supports two masses at either end as shown. A single string hanging from theceiling to the stick will be used to suspend all three. Assuming the meter-stick has a mass of100 grams, calculate the correct marking on the stick which will enable the system to remainhorizontal. (Let g = 10m/s2. )
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Turn on the timer and click the green circular button to start a wave pulse. Stop the timer when the wave pulse first hits the end of the string (when the final bead first starts to move). Do this a couple times to get a precise measurement of the time it took the wave pulse to cross the string. What is the wave velocity
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Two small Styrofoam balls that are separated (between their centers) by 4 cm experience a force of attraction of 15 N. If the balls are separated by 8 cm, the force between them would be ___ N.
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how far apart would two 100 kg persons need to be so that the force they exert on each other is equal to 1n? you can assume they are point masses, having mass but no size.
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Find the direction and magnitude of : 1. The vector sum A + B [10. 22m, 145. 16]2. The vector A - B, [49. 56m, 157] and 3. The vector difference B - A. [49. 56m, 337].
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Tesla is made by Nikola Tesla.True Or False ?Write With The Reason.
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A generator can develop a maximum voltage of 1.2 * 10 ^ 2b. If a 1200-W space heater is powered by this generator and the generator has an I max of 1.10 A, what is the effective current through the heater?a. What is the effective voltage of the generator?
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an expert marksman aims a high-speed rifle directly at the center of a nearby target. assuming the rifle sight has been accurately adjusted for more distant targets, how will the bullet strike the target?
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the laboratory for a body. I in rth. Total:[4] (2) bout a point? ...[1] hat are they? [2] le which is ntally by an (11 iform metre rule Figure 4.1 below shows astone of mass 2kg which drops from the top of a cliff and takes two seconds to strike the ground Acceleration of free fall.g=10m/s. Stone T 77 Figure 4.1 (a) Name the form of energy possessed by the stone before it falls. (b) Determine the height of the cliff (c) Calculate (i) Ground Height,h.......... [2] The kinetic energy of the stone when half way down. [1] Kinetic energy......... The final velocity of the stone as it strikes the [2] stone Klif
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explain how increasing the volume in which a gas is contained, at constant temperature can lead to a decrease in pressure
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The type of faucet that used a rotating cylinder to control the water temperature and the rate of water flow by using a balancing piston is called a
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PLEASE HELP!! AR stands for Radio Detection And Ranging. How does this technology work? 1: Radio waves are sent by a transmitter and the receiver picks them up at location down-range. 2: Radio waves are sent by a transmitter and reflect back to a receiver when they run into an object
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As clothing tumble in a dryer, they can become charged. If a small piece of lint with a charge of +1.62 E19 C is attracted to the clothing by a force of 2.0 E9 N, what is the magnitude of the electric field at this location? 0.38 E10 N/C 1.2 E10 N/C 3.2 E10 N/C 3.6 E10 N/C
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The force
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Each airport has a runway that is about 500 m long.when it lands, the speed of the aeroplane is 40 m/s.explain why the airline should not use an aeroplane that has more mass andneeds a higher speed for landing.
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The length of a hollow pipe is 297 cm. Theair column in the pipe is vibrating and hasfive nodes.Find the frequency of the sound wave in thepipe. The speed of sound in air is 343 m/s.Answer in units of Hz.
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The Titanic had a mass of 52,800 tonnes and was travelling at 41.74 km/h whenthe iceberg was sighted. By the time it hit the iceberg 30 seconds later, it hadslowed to 38.5 km/hWhat was the force?
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6.1 Instantaneous communication. In your own words, explain why youcannot send a message instantaneously using the mechanism of ex-periment 6.1. If quantum mechanics were deterministic rather thanprobabilistic, yet the distant atoms still always left from oppositeexits of a stern gerlach analyzer, would you then be able to send a message instantaneously?What if the operator of the left-hand Stern-Gerlach analyzer weresomehow able to force his atom to come out of the + exit?
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let us recall what is a magnet? How does it work?
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If a cannonball were launched from the surface of Earth, it would eventually fall to the ground. However, if the cannonball was moving fast enough, it would move forward fast enough that it would never fall all the way to the ground, as shown in the animation. If the cannonball in the diagram were launched even faster, what would happen to its motion?
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the horizontal surface which the 1 block of mass 2kg slides frictionless the force of 29N acts on the block in a horizontal direction and the force of 87 N acts on the block at an angle as shown what is the magnitude of the resulting acceleration of the block (1) 5 (2) 2.2549 (3) 4.5 (4) 3.63636 (5) 5.90909(6) 6.89819 (7) 2.75 (8) 14.5455 (9)7.25 (10) 4.10714
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Gravity is also affected by mass. ____, which is the amount of matter in an object. As the amount of mass increases, the forces of gravity between two objects _____Please help
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6.a certain ball was measured to have a momentum of 38 kgm/s when traveling at 8m/s, how much mass does this ball contain?.304 kgb5 lb304 ibd4.75 kg
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